Apparatus for producing mold charges



F HQ? 11 A M1 MWLLFEW mmnmus FOR monucme mow ammm Filmd Match 20., 1.95%

ma? 60 f 63 INVENTOR.

ATTORNEY all. ELLE APPARATUS FOR PRODUCING MOLD ell-Imam Filed March 20,W26

5 Sheets-Sheet 5 .11. MULLER FOR PRODUCING MOLD CHARGES New, w 1929.,

' APPARATUS Filed March 20, 1926 5 Sheets-Sheet 4 ATTORNEY Dec. 3, 1929.W. J. MILLER APPARATUS FOR -PRODUCING MOLD CHARGES Filed March 20. 19265 Sheet$-$heer 5' INVENTOR ATTORNEY;

Patented Dec. 3, 1929 UMTED STATES PATIENT OFFICE WILLIAM J". MILLER, FSWISSVALE, PENNSYLVANIA, ASSIGNOR TO HARTFORD- EMPIRE COMPANY, OFHARTFORD, CONNECTICUT, A CORPQRATION OF DELAWARE APPARATUS FOR PRODUCINGMOLD CHARGES Application filed March 20, 1926; Serial No. 96,199.

My present invention relates to automatic feeders for producing asuccession of mold charges of molten glass, and comprises certain newand useful improvements in the mounting of and in the means forimparting movement to the rigidimplement em ployed to control thedischarge of the glass from the outlet of the feeder receptacle, in themeans for regulating and adjusting the m positions and movements of saidimplement,

and in the new and improved combined mold charge-guide and cullet chute.

Other novel features of construction, and also of arrangement of partswill appear from the following description. 1

In the accompanying drawin s, wherein I have'illustrated the best emboiment of the principles of my invention now known to me, Fig. 1' is afront elevation of amold charge feeder to which my present invention isapplied, the rigid implement being shown .in its intermediate positionand the feeder receptacle and other elements being broken away insection; Fig. 2 is a partial. front elevation on enlarged scale with thefeeder receptacle shown in vertical section and the different positionsof the rigid implement being indicated in dotted lines; Fig. 3 is apartial side elevation looking from'the left in Fig. 1 and showing onenlarged scale the twin standards, the adjustable fulcrum block and thecounter-balance; Fig. 4 is a sectional view, taken along the line IVIVin Fig 6, of the chuck by means of which the rigid implement issuspended from the oscillating lever, the implement being shown grippedby the chuck; Fig. 5 is a view similar to Fig. 4 but showing thejaw-arms spread to release the rigid implement; Fig. 6 is a plan view ofthe chuck with the shield and wedging ring removed and the implementstem shown in section; Fig. 7 is a detail showing therelation ofdifferent diameters of plungersto the discharge outlet when in their lowpositions; Fig. 8 is a detail showing the receptacle in horizontalsection and illustrating the lateraladjustment of the rigid'instrumentrelative' to the discharge outlet; Fig. 9 is an enlarged detail ofthemeans employed for 50 limiting the movement of the rigid imple-REISSUED ment and for adjusting the limits of and the path of itsmovement; Fig. 10 is a plan view of the lever fromwhich the rigidimplement is suspended; Fig. 11 is a side elevation, on enlarged scale,of the yoke by means of which the rigid implement is pivotally sup-.ported from the lever; Fig. 12 is a top plan view showing the means forrotating the rigid implement, the top plate being shown in dotted lines;Fig. 13 is a diagrammatic view of the same showing the pinion and pawlmechanism; Fig. 14 is a side elevation of the combination funnel guideand cullet chute; Fig. 15 is a top plan view of the same; Fig.

.16 is an enlargedsection taken along the line XVIXVI'in Fig. 15, Fig.17 is a section taken along the line XVII,-XVII in Fig. 15; Fig. 18 is abroken side elevation taken similarly to Fig. 3 and showing the fulcrumblock shifted laterally to the left from its position in Fig. 3, andFig. 19 shows the fulcrum block tilted laterally out of its verticallydisposed position shown in Fig. 3.

.Referring to the drawings, 1 represents the feeder receptacle which isusually a boot or shallow extension of the continuous tank, and which isprovided with a discharge outlet submerged by the molten glass in thetank. The main portion of the discharge outlet is shown comprisedof thedownwardly tapered bore of a clay liner 2 which occupies an opening inthe floor of the boot 1, while the lower end of the outlet is formed bythe bore of a clay orifice bushing 3 which may support the liner 2 inplace and is itself interchangeable to produce columns or extrusions ofglass of different diameters. Thus the orifice bushing 3 is removablyheld in place, as byan apertured plate 4. 5 represents the mechanicalshears which are employed at proper intervals to sever the glassdepending from the outlet. a

V. The boot 1 is exteriorly provided'with the platform 6, preferably ametal casting and integral with or supported by the metal casing 6 ofthe boot.

7 represents a rigid, preferably clay implement, hereinafter referredto, for convenan opening in the roof of the not 1 into the cumferentialgroove 8 which is engaged by the jaws 9 o the chuck at equally spacedpoints. Said jaws are preferably three in number, and are each formed onthe lower end of an arm 10. Said arms are pivotally mounted intermediateof their ends between the pairs of pierced cars 11 integral with anddisposed radially of the head 12 which is screwed and pinned on thelower end of the plunger stem 13. It willbe noted that the metal of thearms 10 is so placed that when the arms are released their lower or jawends swing outwardly, thus spreading the jaws 9 into their inoperativeor non-gripping positions. Upper and lower stops 14 are provided tolimit the arc of movement of the arms in either direction,- byengagement with the head 12. i Y Y 15 represents a doubleacting wedgingring which is loosely mounted on the stem 13 and is employed to wedgethe jaws 9 into enagement with the plunger when the plunger isinstalled, and also to wedge the jaws out of engagement with the plungerwhen the plunger is to be removed from the chuck.

For the first of these purposes the ring 15 is provided with a pluralityof downwardly tapered exterior surfaces 15 equal in number to the jawarms and correspondingly spaced about the wedging ring. Thus when thering.15 is turned on the plunger stem into the position relative to thejaw arms 10 shown in Fig. 4, the wedging surfaces 15 engage the upperends of. the jaw arms from within, thus wedging the jaws 9 intoengagement with the groove 8 of the plunger and clamping the plunger tothe chuck. Interposed between the wedging surfaces 15, the ring 15 isprovided with an equal number of depending lugs 15 which are provided ontheir inner faces with inclined surfaces which are adapted to engage theuppenends of the jaw arms from without, thus as the ring descends,separating the jaws 9 from their engagement with the groove 8 of theplunger. Thus when it is desired to release the plunger from the chuck,the ring 15 is raised from its position shown in Fig. 4 and then turnedto bring the projections 15 into alinement with the jaw arms and thering is then moved downward- 1y, thereby spreading jaws, which may tendto adhere to the plunger, apart.

16 is a metal disk which is fixed to the top of ring 15, as by screws,serving as a shield or deflector for the heat ascending up along theplunger from the receptacle 1. The disk is preferably provided withradial spokes 16 to facilitate the raising and lowering and the turningof the ring 15.

It is evident that the weight of the ring 15 and disk 16 will at alltimes maintain the jaws 9 in firm engagement with the plunger, thusautomatically taking up any tendency toward slackness 1n the grip of thejaws due to the contraction or expansion of the material of the plunger.

Usually the weight of the ring 15 when in the position shown in Fig. 4is sufiicient to hold the jaws in proper engagement with the plunger butas an additional security for instance when the plunger is working inrelatively stiff glass, I may provide a clampin nut 17 on the stem 13which may be screwed down against the ring 15 to hold it in place.

It is evident that as the jaws assume their separated positions whenfree, the installation of a plunger is easy, as is also the dismountingof the plunger.

19 is the oscillating lever which is employed to impart reelprocalmotion to the plunger 7. The mounting of the lever will be laterdescribed.

The lever is provided intermediateof its ends with an aperture 20 inwhich the yoke 21 is mounted to swing on an axis transverse to thelongitudinal axis of the lever 19. Thus I show theyoke provided with ahorizontal bore 22 in the ends of which extend the trunnion pins 23which are fixed as by set screws 24 while the outer ends of thetrunnions are jonrnaled in bearings 25 formed in the lever 19 at eitherside of' the aperture 20.

At one side, preferably turned to the rear of Figs. 1 and 2, the yoke 21is provided with an upwardly extending stand 26 to the upper end ofwhich is pivotally attached, as b pin 27, the sleeve 28 into the socketof which is screwed the end of the parallel-throw link 29.

The yoke 21 is provided with a vertical bore 30 intersecting the bore22, and through which extends the threaded plunger stem 13. 31 arepositioning nuts on said stem above and below the yoke whereby the stem13 and the plunger 7 depending from said yoke may be raised or loweredrelative to the yoke 21 and the lever 19. The upper and lower ends ofthe bore 30 are countersunk to provide seats for the anti-friction orroller bearings 31 against the casings of which the 33, the head of saidbolt bearing against the face of the standards and having a shoulderedportion which fits between the latter. The shank of the bolt extendsloosely through a hole in the upwardly extending win of the bracket 37and has a nut 41 screwe on its epd and adapted to bear against thebrack- Qt 3 The shelf 36 is provided with the inwardly inclined andthreaded hole .42 through which is screwed the upper end of the clampingrod 43 whose lower end is provided with a cross-handle 44. a The upperend of the rod impinges from beneath against the horizontal wing of thebracket 37, as shown in Fig. 1. By screwing up on the rod 43 the bracketis tilted rearwardly against. the nut 41 on the bolt 40, thus tighteningthe bolt and clamping the block 32 rigidly to the standards. Byunscrewing the rod 43, the bolt 40 may be loosened and the block 32 thenmay be raised or lowered on the standards; the rod 43 being then screwedup again to retighten the bolt and clamp the block 32 in position.

It is evident that by adjusting the set screws 35 the fulcrum block maybe shifted horizontally relative to the standards, as shown in Fig. 18;that is toward the front or the rear of the feeder, or by the properadjustment of the set screws the fulcrum block may be tilted laterallyin a plane parallel to that of the standards,'as shown in Fig. 19.

One end of the lever 19 is bifurcated, as shown in Fig. 10, to straddlethe standards 33 and the fulcrum block 32, and is provided with opposedsleeves 45 in which are journaled the outerends of the pin 46 whichextends through a horizontal sleeve opening in the lower portion of theblock. The pin is provided with washers and cotter pins 47 at its endsto prevent its longitudinal movementfrom place.

49 is a lug integral with and extending inwardl from the upper portionof the block 32 an said lug is provided with a plurality of holes 50horizontally alined and spaced apart. 51 is a sleeve which is slipped onthe outer end of the parallel throw link 29, the

position of the sleeve relative to the link bemg regulated by the nuts52 whiclr are screwed on the link on either side of the sleeve, the endof the link being threaded to receive said nuts. Depending from thesleeve is a pierced car 53, a pivot pin or bolt 54 extending throughsaid ear and through one of the holes 50 in the lug 49.

It is evident that the fulcrum point of the parallel throw link 29 isinside-of the fulcrum point of the oscillating lever 19.

. By adjusting the fulcrum point of the link 29, which. may beaccomplished "by shifting the pin 54 to the proper hole 50 of the lug49, the desired movement of the plunger may be obtained. Thus the lowerend of the plunger may be arranged to move in a vertical line inrelation to the orifice, as indicated by the dotted lines in Fig. 2, orif desired, the point where the plunger enters the glass may benalalintained the same as the plunger rises and The plunger and itsmounting are counterbalanced by the weight 55 slidable on the lowerportion of the standards 33 and connected to the lever 19 by cables 56running up through holes in the shelf 36 and over a sheave 57 mounted onthe upper ends of the standards. Thus the load of the plunger and itsmountin on the reciprocating means yet to be descri ed iscounterbalanced and also the shifting of the fulcrum block relative tothe standards for the purposes of adjustment is facilitated.

The other or free end of the lever 19 is provided with a longitudinallydisposed slot 58 and in the. inner end of said slot the upper end of thepiston rod 59 is pivotally attached by means of the cross-pin 60 whichextends through 'a horizontally slotted hole in the cross head of thepiston rod. The piston rod is attached to the piston of thevv verticallydisposed fiuid-pressure cylinder 61 mounted on the platform 6. It isapparent that the plunger 7 may be reciprocated relative to the cut thatthe rod 65, depending from the lever 19, ascends and descends in unisonwith/the plunger 7.

67 is a fixed abutment which may prhject I ;from the head of thecylinder 61 and which is (provided-with a slot through which there 65looselydepends'l a a The threaded upper portion of the rod 65 isoflargerdiameter than the lower portion of the rod, thus providing between saidportions a shoulder 68, and 69 is an annular threads. These threads maybe of the same, or different pitch. 73 is a limiting nut (vivasher slidup on said rod against said shoul- A sleeve 7 O is slipped up on the rodagainst the washer 69 and is supported from below by the anti-frictionbearing member 71 which is held in place by the hand-grasp 66. Thesleeve 70 is provided at its lower end with the hand-grasp 72 pinnedin'place thereon, and by means of whichthe sleeve may be rotated on therod.

The intermediate portion of the sleeve 70 is unthreaded but its upperand lower ends are provided with oppositely disposed screwed on theupper threaded portion of said sleeve and above the abutment 67 while 74is a similar nut screwed on the lower portion of said sleeve and belowsaid abutment.

The nuts are prevented from rotation' by means of a rod 75 whose lowerend is fixed in a block 7 4* which may be clamped rigid with the nut 74by the bolt 7 4 and extends through a hole in the block 7'3 clampedrigid with the 0 nut 73 by the bolt 7 3", and in the block 62..

The limiting nuts are employed to define or limit the path of movementof the sleeve 70 andconsequently of the rod 65 relative to the abutment,and thus define the movement of the plunger when the same isreciprocated.

76. represents a spring guard slidably mounted on the sleeve 70above theabutment 67 and below the nut 73, and carrying the helical spring 77which loosely encircles the sleeve 70 and is first encountered andcompressed by the nut 73 as the rod 65 moves downwardly with the plunger7, forcing the spring guard down on the abutment and finally halting thedownward movement of the plunger by the compression of the spring. Asthe fluid-pressure is next relieved from the upper end of the cylinder61, which is simultaneous with the admission of fluidpressure to thelower end of the cylinder,

. the spring 77 quickly expands, its stored power driving the nut 73upwardly and thus imparting a rapid initial upward movement to theplunger, thereby either lifting the sheared stub up into the outlet, orattenuating the neck of or necking the mold charge prior to shearing,depending on whether the plunger is arranged to start its upwardmovement subsequent to or after the shears cut.

The spring 77 also by its progressive resistance to compression slowsdown the plunger as it approaches its low position.

As the plunger continues to rise, the nut 7 4 moves upwardly and haltsthe upward movement of the plunger by its contact with the abutment 67.

It is thus evident that the limiting nut 7'3 determines the low positionof the plunger while the limiting nut 7 4 determines the high positionof the plunger.

The abutment 67 is preferably provided at either side of its slot withrounded bosses 67 a which are engaged by the movinglimiting means, andthereby insuring proper engagement regardless of the lateral movement orswing of the rod 65 due to the oscillation of the lever 19. I

It is further evident that the rotation of the rod 65 in the properdirection will cause said limiting nuts to be raised or lowered inunison, thus raising or loweringthe path of movement of theplunger.

It is further evident that by rotating the sleeve 70 in the properdirection the nuts 73 and 74 may be caused to approach each other or toseparate, thus shortening or lengthening the path of movement of theplunger.

With the rod -7 5 removed the nuts 73 and 74 may be independentlyadjusted on the sleeve 70, thus providing means for varying the lowposition of the implement without changing its high position, and viceversa.

By providing the two end portions of the sleeve (0 with threads ofdifferent pitch, the nuts will be caused to travel on the sleeve but atvarying speeds, thus providing for the simultaneous adjustment of boththe high and low positions of the plunger but to different degrees. 1 I

By disconnecting the block 7 3 from the nut 7 3, the rotation of thesleeve in the proper direction will raise or lower the lower limitingnut 74 without varying the position of the upper limiting nut 73, thusproviding for the adjustment of the high position of the plunger withoutvarying its low position. Again by disconnecting the block 74 from thenut 74 while the block 7 3 remains clamped to the nut 73, a rotation ofthe sleeve 7'0 will effect an adjustment of the low position of theplunger Without varying its high positionf In Fig. 7 I have illustratedthe low positions of plungers of three different diameters in relationto a liner 2. The importance of providing means for adjusting the lowposition of the plunger relative to the outlet is thus apparent.

Furthermore in suspended gob feeding, variations in the positions of theplunger relative to the out-let are employed in producing gobs ofdifl'erent shapes and sizes.

Again the lateral adjustment of the plunger relative to the outlet isimportant. For instance the plungers being formed of clay are frequentlynot straight or they may become warped from usage, and may be or becomeout of proper alinement with the outlet. It is an observed fact that theglass in the nose of the'receptacle at the front side of the outlet iscolder and more viscous than that on the side of the outlet nearest themelting tank,

and therefore, as the hotter and more fluid section. I correct thistendency by adjusting the plunger nearer to the rear or hotter sideofthe outlet, thus equalizing the fiow and preventing a lop-sidedextrusion.

The alinement of the plunger relative to the front and rear of theorifice maybe adj usted by shifting or tilting the fulcrum plate 32in aplane parallel to that of the standards 33 through the proper adjustmentof the individual set screws 35.

The path of movement of the plunger relative to the outlet may also beraised or lowered by raising or lowering the fulcrum block 82 on thestandards 33.

The fulcrum block may also be raised on the standards to elevate theplunger out of th bath of molten glass in the boot for repans to orreplacement of the plunger and for other purposes.

The parallel throw link 29 functions to maintain the lower end of theplunger 7 always in the same vertical path in alinement with thedischarge outlet, as shown in dotted lines in Fig. 2, notwithstandingthe elevation of the plunger or the tilting of the lever 19 and theplunger during their movement.

I provide means for, impartin a rotary movement to the plunger inaddltion to its reciprocal movement, thus keeping mixed the mass ofmolten glass in the receptacle 1 and avoiding the formation of strataand zones of glass of different temperatures and degrees of viscosity.

The plunger stem- 13 is extended above the yoke 21 and is connected bythe flexible joint 78 with a shaft 7 9 which is squared to slidahly fitthe squared boreof a plnion 80 whose depending hub 81 is journaled in asleeve bearing 82 on the horizontally disposed casting 83 supported fromthe platform 6 by the standards 84. There is sufficient tween the shaftand the bore of pinion 80 to prevent interference with the verticalreciprocation of the shaft in unison with the plunger.

85 and 86 represent a pair of opposed pinions, preferably of greaterdiameter than the pinion 80 and both in mesh therewith. Said pinions areloose on vertically disposed shafts.

87 and 88, respectively, said shafts being journaled between the castin83 and the top 1 plate 89 attached to the castmg.

Near their upper ends the shafts 87 and 88 have fixed thereon thepinions 90 and 91,

respectively, said last named pinions mesh-,

ing with the opposite side of the double-rack bar 92 which is attachedtothe piston 93 of the fluid-pressure cylinder and piston mechanism 94which, is horizontally mounted on the casting 83.

It is evident that an outward movement of the rack bar 92 rotates thepinion 90 and its shaft 87 counterclockwise and the pinion 91 anditsshaft 88 clockwise, while an inward movement of the rack bar rotates thepinion play be- 90 and its shaft 87 clockwise and the pinion 91 and itsshaft 88 counterclockwise.

It is further evident that if the pinions 8 and 86 were fast 'to theshafts 87 and 88, the plunger 7 would be rotated first in one directionand then in the other direction. However, it is desirable to impartrotation in one direction only to the shaft, and I therefore providetherefor by arranging the pinions 85 and 86 so that they each receiverotation in one direction only from their shafts.

Thus the shaft 87 is provided with a ratchet disk 95 fixed thereon withthe tooth-shoulders facing counterclockwise and I provide the "adjacentface of the loose pinion 85 with a is rotated counterclockwise andimparts a clockwise rotation to the plunger 7 while the rackbar ismoving outwardl but the pawl 96 trails idle over the teeth 0 the diskwhile the rack bar is moving inwardly so that the pinion 85 is idle.

In like manner I fix a second' ratchet disk 97 on the shaft 88 with itstooth-shoulders facing counterclockwise and provide the adjacent face ofthe pinion 86 with a spring pawl 98 which engages the disk 97 whenduring the inward movement of the rack bar the shaft 88 is rotatedcounterclockwise but which permits the pinion 86 to remain idle duringan outward movement of the rack bar It is thus apparent that the pinion80 and the shaft 79 are always rotated clockwise; by the pinion 85 whilethe rack bar is moving outwardly, and by the pinion 86 while the rackbar is moving inwardly. Thus the plunger'is rotated in one directiononly by? the reciprocation of the rack bar.

Preferably a timed relation is maintained between the reciprocal androtary movements of the plunger. Thus I prefer that the ro movementthereof, the rotary movement-however ceasing as the plunger approachesthe end of a stroke. For this purpose'I provide means for properly andadjustably synchronizing the reciprocation and rotation of the plunger.

Thus in Fig. 1 I illustrate a timin device 99, shown of the rotary typedescri ed and claimed in Letters Patent of the United States No.1,540,894, issued to me on June 9,

In Fig. 1 the timing device 99, as will more fully appear by referenceto said Letters Patent No. 1,540,894, is provided with a plurality ofannuli 100, 100", 100, 100 100 and 100 mounted concentrically about acommon axis and rotated in unison, said annuli 100 being each providedwith a striking roller 101, and the several annuli being adjustablerotarily about their common axis of movement. 102 is a double-actingrotary valve, such as shown and described in said Letters Patent No.1,540,894, arranged to be actuated in opposite directions by the rollers101 of the annuli 100 and 100*, said valve being connected to theopposite ends of the plunger rotating cylinder 94 by the pipes 103 and104 respectively. It is understood that when the valve 102 is actuatedin one direction, the fluid pressure is admitted to one end of thecylinder and relieved from the other end thereof, and when the valve isactuated in the other direction the fluid pressure is relieved from saidfirst mentioned end and relieved from the second mentioned end. Thepipes 103 and 104 are provided adjacent to theycylinder withadjustablecushion valves 105, similar to the cushion valves described inmy patent application Serial Number 325,616, filed in the United StatesPatent Office on September 23, 1919, and employed to regulate the rateof relief of fluid pressure from in front of the advancing cylinder.

Again the similar rotary valve 106'which is actuated in oppositedirections by the rollers '101 of the annuli 100 and 100 is connected bythe pipes 107 and 108 to the opposite end ofthe plunger reciprocatingcylinder 61, ad justable cushion valves 105 being also provided ateither end of the cylinder. Again the rotary valve 109 actuated ineither di rection by the. rollers 101 of the annuli 100 and 100 isconnected to the shear operated Ycylinder, not shown, by the pipes 110and 111.

The plunger rotating cylinder 94 is also shown provided with an abutmentscrew 112 screwed through a threaded hole in its rear end "whereby theinward movement of the cylinder may be halted at any predeterminedpoint. a

It is evident that the moments of actuation of the rotary valves andthus the instants of the reversal of the application of pressure to thecorresponding cylinders may be regulated by adjusting the relation ofthe annuli 100 of the timing device 99. It is further evident that bythe adjustment of the cushion valves 105 and thereby regulating theescape of pres sure from in front of the piston, the speed of therotation of the plunger and also its speed of its vertical movement ineither direction maiy be regulated. I

t is thus evident that the rotary and reciprocating movements of theplunger may be regudated and given'any mutual relation as may be deemedadvantageous.

- I provide a guide which conducts the mold charges, when sheared, tothe molds or other receptacle to' which they are supplied. In my presentinvention I combine with the guide a cullet chute for directing the moldcharges into'the cullet pit when, for any reason, it is not desired todeliver them to the molds or other receptacle.

Thus the operation of the fabricating machine may be interrupted whilethe feeder continues to produce and deliver mold charges, or it may bedesirable to interrupt the delivery of mold charges while repairs oradjustments are being made to the fabricating machine without stoppingthe feeder.

' I therefore arrange the guide and cullet chute so that either one maybe positioned below the shears and in alinement with the dischargeoutlet, so that when in normal use the guide will be positioned todeliver the mold charges to the fabricating machine but when desired thecullet chute may be substituted to carry away the mold charges.

Thus 113 is a guide, shown as of funnel shape'and having its lower endreduced and shouldered to fit into the circular socket 114 of a plate115 which is provided at either side with a pair of slotted bolt holesby means of which it may be adjustably bolted to the outer end of abracket 116. Bolt holes are provided at either side so that the plate115 may be reversed in relation to the bracket 116. At one side theplate 115 is provided with an integral cullet chute 117 whose upper endis at the same level as the upper end of the guide 113. The guide 113has a flattened portion of its outer wall which fits against the innerend of the chute structure, as shown at 118, thereby preventing therotation of the guide in its socket.

The plate 115 is provided with a water chamber surrounding the socket114 and supplied with cooling water through a port 119 to which isconnected a flexible pipe 120. A plurality. of ports 121 lead from saidwater chamber into the upper end of the slide so .that the latter isprovided with a filmof water.

The other end of the bracket 116 is provided with a sleeve 122 throughwhcih depends the A standard 123 extending down from the platform 6. 124is a split collar which is clamped onto the standard 123 below thesleeve 122, thus supporting the bracket in such manner that it may beturned on a vertical axis. It is evident that by adjusting the collar124 on the standard 123 the elevation ofthe guide and chute relative tothe shears and outlet may be regulated. r

The split collar 124 is provided with a horizontal platform 125extending beneath the bracket 116 and provided at its ends with anupwardly extending lip 126 having a threaded hole therein through whichably limits the movement or swing of the bracket relative to theplatform. At a point on its center line the platform is provided with asocket 128 containing a ball 129 which protrudes slightly above theplatform surface. The under face of the bracket is provided at itscenter with a projection 130 comprising two oppositely inclined surfacesdisposed transversely of the bracket. It is apparent that when thebracket is swung to bring the apex of the projection 130 past the ball129 the movement of the bracket Wil be halted by contact with the end ofthe abutment screw at the side of the platform toward which the bracketis moving. It is further evident that the bracket will automaticallymaintain this position by gravity until it is intentionally swung in theopposite direction, the apex of the projection passing over the ball andthe bracket coming to rest against the other abutment screw. Theabutment screws are adjusted so that when the bracket engages one of thesame, theupper one in Fig. 15, the guide 113 is positioned under theoutlet of the feeder to direct the mold charges intothe molds, and whenthe bracket engages the other abutment screw the cullet chute 117 ispositioned under the outlet. A handle 131 may be attached to the guide113, which may be grasped to shift the bracket from one position to theother. 4

Thus in case it is desired to divert the mold charges from the molds, asfor instance while the feeder is being adjusted to produce the moldcharges desired or in case the fabricating machine is temporarilystopped while feeder continues to operate the workman seizes the handle131 and moves the cullet chute into position beneath the outlet. When itis desired to resumetlie fabrication of ware the workman, again seizesthe handle and positions the guide under the outlet. The adjustableabutment screws provide means for the accurate spotting of the guide andthe cullet chute in position.

What I desire to claim is 1.. In apparatus for producing a succession ofmold charges of molten glass the combination with a receptacle for themolten glass having a submerged discharge orifice, of a rigid implementworking in the glass in the receptacle to control the discharge of glassfrom said outlet, means for moving said implement toward and away fromthe outlet and unitary adjustment means for simultaneously raising theposition of the implement nearest to the outlet and lowering theposition of the implement remote from the outlet.

2. In apparatus for produ ing a succession of mold charges of moltenglass the combination with a receptacle for the molten glass having asubmerged discharge orifice, of a rigid implement working in the glassin the receptacle to control the discharge of glass from said outlet,means for moving said plement toward and away from the outlet,

and means for simultaneously moving said implement toward and away fromthe out-' let, and unitary adjustment means for simultaneously loweringthe position of the implement nearest to the outlet and raising theposition of the implement remote from the outlet.-

3. In apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the? molten glass havin asubmerged discharge orifice, of a rigid implement working in the glassin the receptacle to control the discharge of glass from said outlet,meansfor moving said implement toward and away fromsaid outlet, andunitary means for simultaneously adj usting to different degrees thepositions of said implement nearest to and most remote from said outlet.

41. In apparatus for producing a succession of mold charges of moltenglass, the combina tion with a receptacle for the melten glass having asubmerged discharge outlet, of a rigid implement working in the glass inthe receptacle to control the discharge of glass from said outlet, meansfor moving said im-,

upper and lower limiting stops to determine the positions of theimplement nearest to and remote from the outlet, and unitary means forcausing saidstops to diverge and to converge.

5. In apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten glass having asubmerged discharge outlet, of a rigid implement working in the glass inthe receptacle to control the discharge of glass from said outlet, meansfor moving said implement toward and away from the outlet, a membermoving in unison with said imple ment and in relation to a fixedabutment, limiting stops adjustably mounted on said member on oppositesides of said abut-ment, and unitary means for adj usting the positionsof said limiting stops on said member.

6. In apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten glass having. asubmerged discharge outlet, of a rigid implement working in the glass inthe receptacle to control the discharge of glass from said outlet,nieans for moving said implement toward and away from the outlet. 2.member moving in unison with said implement and in relation to a. fixedabutment, limiting stops 'adjustably mounted on said member on oppositesides of said abutment stops toward or away from each other on saidmember.

7. In apparatus for producing a succession of mold charges of moltenglass, the combinaation with a receptacle for the molten glass having asubmerged discharge outlet, of a rigid implement working in the glass inthe receptacle to control the discharge of glass 1 having a submergeddischarge outlet, of a. rigid implement working in the glass in thereceptacle to control the discharge of glass from said outlet, means formoving said implement toward and away from the outlet, a

member moving in unison with said imple ment and in relation to a fixedabutment, limiting stops adjustably mounted on said member on oppositesides of said abutment, means for simultaneously adjusting said stops inunison relatively to said abutment and means for simultaneously movingsaid stops toward or away from each other on said member. Y

9. In apparatus for producing a succession 'of mold charges of moltenglass, the combination with a receptacle for the molten glass having'asubmerged discharge outlet, of a rigid implement working in the glass inthe receptacle to control the discharge of glass from said outlet, meansfor moving said implement toward and away from the outlet, a membermoving in unison with said implement in relation to a fixed abutment, asleeve rotatable on said member, and limiting stops on said sleeve oneither side of said abutment.

10. In apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten glass having asubmerged discharge outlet, of a rigid implement working in the glass inthe receptacle to control the discharge of glass from said outlet, meansfor moving said implement toward and away from the outlet, a membermoving in unison with said implement-in relation to a fixed abutment, asleeve rotatable on said member, limiting stops on aid sleeve oneitherside of said abutment, nd means'whereby the rotation of saidsleeve causes said stops to move relative thereto to adjust the movementofthe implement relative to the outlet.

- 11. In apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten glass havin asubmerged discharge outlet, of a rigid implement working inthe glass inthe receptacle to control the discharge of glass from said outlet, meansfor moving said-implement towardand away from the outlet, a membermoving in unison with said implement in relation to a fixed abutment, asleeve rotatable on said member, said sleeve being exteriorly threaded,and limiting nuts screwed on said sleeve on either side of saidabutment, said nutsbeing held against rotation, whereby the rotation ofsaid sleeve causes the adjustment of the positions of the implementnearest to and most remote from the outlet. 7

12L In apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten glass having asubmerged discharge outlet, of a rigid implement working in the glass inthe receptacle to control the discharge of glass from said outlet, meansfor moving said implement toward and away from the outlet, a membermoving in unison with said implement in relation to a fixed abutment, asleeve rotatable on said member, said sleeve being exteriorly providedon either side of the abutment with threads of opposite pitch, andlimiting nuts screwed on said threads and held against rotation withsaid sleeve, whereby the rotation of said sleeve causes said nutstoapproach or separate.

13. In apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten -glass having asubmerged discharge outlet, of a rigid implement working in the glass inthe receptacle to control the discharge of glass from said outlet, meansfor moving said implement toward and away from the outlet, a membermoving in unison with said implement in relation to a fixed abutment, asleeve rotatable on said member, said sleeve being exteriorly providedon either side of the abutment with threads of opposite pitch anddifferent in angularity, and limiting nuts screwed on said threads andheld against /rotation with said sleeve, whereby the rotation of saidsleeve causes said nuts to approach or separate at diflerent speeds ofmovement. s

14. In apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten glass having asubmerged discharge outlet, of a rigid implement working in the glass inthe receptacle to control the discharge of glass from said outlet, meansfor moving said implement toward and away from the outlet, a membermoving in unison with said implement in relation to a fixed abutment, asleeve rotatable on said member, said sleeve being exteriorly providedon either side of the abutment with threads of different angularity, andlimiting nuts screwed in said threads and held against rotation withsaid sleeve, whereby the rotation of the sleeve causes the nuts totravel at different speeds of movement.

15. In apparatus for producing a succession of mold charges of moltenglass, the

' plement and in relation to a combination with a receptacle for themolten glass having a submerged discharge outlet, arigid implementworking in the glass to control the discharge of glass from said outlet,means including an oscillating lever for moving the implement toward andaway from the outlet, a member connected with the lever and movedtherewith in unison with the imfixed abutment, limiting stops on saidmember on either side of the abutment to determine the path of movementof said implement, and means for varying the relation between saidmember and said oscillating lever.

I11 apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten glass having asubmerged discharge, outlet, a rigid implement working in the glass tocontrol the discharge of glass from said outlet, means including anoscillating lever for moving the implement toward and away from theoutlet, a member connected with the lever and moved therewith in unisonwith the implement and in relation to a fixed abutment, limiting stopson said member on either side of the abutment to determine the path ofmovement of the implement, and means for adjusting the positions of saidstops on said and means for varying the relation said member and saidoscillating member, between lever.

17. In apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten glass having asubmerged discharge outlet, a rigid implement working in the glass tocontrol'the discharge of glass from said outlet, means including anoscillating lever for moving the implement toward and away from theoutlet, a member connected with the lever and moved therewith in unisonwith the implement and in relation to a fixed abutment, a sleeverotatable 'on said member, limiting stops on said sleeve on either sideof the abutment, and means on said rod, said sleeve being exteriorlythreaded on either side of the abutment, limiting nuts screwedon saidsleeve on either side of said abutment, and means for ad usting said rodrelative to sa d lever whereby glass having a whereby the rotation. ofsaid sleeve causes adjustment of the pos1- 1y mounted said nuts may beadjusted in unison and relative to said abutment.

19. In apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten submergeddischarge outlet, of a rigid implement working in the glass in thereceptacle to control the discharge or glass from said outlet, drivingmeansincluding an oscillating lever for moving said receptacle towardand away from the outlet, a rod connected to said lever and moving inunison with said implement in relation to a fixed abutment, a sleeverotatably mounted on said rod, said sleeve being exteriorly threaded oneither side of the abutment, limiting nuts screwed on said sleeve oneither side of the abutment, said nuts being held against rotation withsaid sleeve, whereby the rotation of said sleeve causes an adjustment ofthe positions of the nuts thereon, and means for adjusting the rodrelative to the lever.

20. In apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten glass having asubmerged discharge outlet, of a rigid implement workin in the glass inthe receptacle to control the discharge of glass from said outlet,driving means including an oscillating lever for moving said receptacletoward and away from the outlet, a rod connected to said lever andmoving in unison with said implement in relation to a fixed abutment, asleeve rotatably mounted on said rod, said sleeve being exteriorlyprovided with threads of different angularity on either side of theabutment, limiting nuts screwed on said sleeve, means for preventing therotation of said nuts with said sleeve whereby the rotation of saidsleeve causes the movement of the nuts on the sleeve but at differentratesof speed, and means for adjusting the rod relative to the lever.

21. In apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten glass having asubmerged discharge outlet, of a rigid implement working in the glass inthe receptacle to control the discharge of glass from said outlet,driving means including an oscillating lever for moving said receptacletoward and away from the outlet, a rod connected to said lever andmoving in unison with said implement in relation to a fixed abutment, asleeve rotatably mounted on said rod, said sleeve being exteriorlyprovided with threads of opposite pitch on either side of the abutment,limiting nuts screwed on said threads, means for reventing the rotationof said nuts with said sleeve whereby the rotation of the sleeve causessaid nuts to approach'or se arate, and means for adjusting the rodrelative to the lever.

sion of mold charges of molten glass, the'combination with a receptaclefor'the molten glass having a submerged discharge outlet, of a rigidimplement working in the glass in the receptacle to control thedischarge of glass from said outlet, driving means including anoscillating lever for moving said receptacle toward and away from theoutlet, a rod connected to said lever and moving in unison with saidimplement in relation to a fixed abutment, a sleeve rotatably mounted onsaid rod, said sleeve being exteriorly provided with threads of oppositepitch and different angularity, means for preventing the rotation ofthenuts with said sleeve whereby the rotation of the sleeve causes saidnuts to approach and separate but at difi'erentrates of speed, and meansfor adjusting the rod relative to the lever.

23. apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten glass having asubmerged discharge outlet, of a rigid implement working in the glass tocontrol the discharge of glass from said outlet, driving means includingan oscillating lever for moving the implement toward and away from theoutlet, a fulcrum member to which said oscillating lever is connected,and means'for shifting said fulcrum member in a plane substantially atright angles to the plane of movement of the oscillating lever wherebyto-adjust the position of the fulcrum of said oscillating lever.

24. In apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten glass having asubmerged discharge outlet, of a rigid implement working in the glass tocontrol the discharge of glass from said outlet, driving means includingan oscillating lever for moving the implement toward and away from theoutlet, and means for effecting an adjustment of the position of thefulcrum of the lever by tilting the axis of the same in a verticalplane.

25. In apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten glass having asubmerged discharge outlet, of a rigid implement working in the glass tocontrol the discharge of glass from said outlet, driving means includingan oscillating lever for moving the implement r toward and away from theoutlet, and

means for effectin an adjustment of the position of the fulcrum of thelever by tilting the axis of the same in a vertical plane while thedriving connections of the imple ment subsist.

26. In apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten glass having asubmerged discharge outlet, of a rigid implement working in the glass tocontrol the discharge of glass from said outlet, driving means includingan oscillating lever for moving the implement toward and away from theoutlet, a fulcrum member to which said lever is pivotally connected, andmeans for adjusting the position of the fulcrum member by tilting itsaxis in a vertical plane.

27. In apparatus for producing a succession of mold'charges of moltenglass, the combination with a receptacle for the molten glass having asubmerged discharge outlet, of a rigid implement working in the glass tocontrol the discharge of glass from said outlet, driving means includingan oscillating lever for moving the implement toward and away from theoutlet, a fulcrum member to which said lever is pivotally connected, andmeans for adjusting the position of the fulcrum member by tilting itsaxis in a vertical plane while the driving connections of the implementsubsist.

28. In apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten glass having asubmerged discharge outlet, of a rigid implement working in the glass tocontrol the discharge of glass from the outlet, driving means'includingan oscillating lever and a parallel throw link both pivotally connectedto said implement for moving the implement toward and away from theoutlet, and means for adjusting the position of the fulcrum of saidparallel throw lever.

29. In apparatus for producing a succession of mold charges of moltenglass, the combination, with a receptacle for the molten glass having asubmerged discharge outlet, of a rigid implement working in the glass tocontrol the discharge of glass from the outlet, driving means includingan oscillating lever and a parallel throw link both pivotally connectedto said implement for moving the implement toward and away from theoutlet, and means for adjusting in unison the fulcrums of said lever andsaid lin 30. In apparatus for producing a succession of mold charges ofmolten glass, the combination with a receptacle for the molten glasshaving a submerged discharge outlet, of a rigid implement working in theglass to control the discharge of glass from the outlet, driving meansincluding an oscillating lever and a parallel throw link both pivotallyconnected to said implement for moving the implement toward and awayfrom the outlet, means for adjusting in unison the position of thefulcrums of said lever and said link, and means for independentlyadjusting the position of the fulcrum of said link.

31. In apparatus for producing a succession of mold charges of moltenglass, the

its point of connection with the implement.

32. In apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten glass having asubmerged discharge outlet, of a rigid implement working in the glass tocontrol the discharge of glass from the outlet, driving means includingan oscillating-lever and a parallel throw link both pivotally connectedto said implement for moving the implement toward and away from theoutlet, means for adjusting in unison the position of the fulcrums ofsaid lever and said link, and means for independently adjusting theposition of the fulcrum of said link toward or away from its point ofconnection to the implement. I

.33. In apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten glass having asubmerged dischargeputlet, of a rigid implement working in the glass tocontrol the discharge of glass from the outlet, driving means includingan oscillating lever and a parallel throw link both pivotally connectedto said implement for moving the implement toward and away from theoutlet, and a common fulcrum member to which said lever and said linkare both nected. M

34:. In apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten glass having asubmerged discharge outlet,

of a rigid implement Working'in the glass to control the discharge ofglass from the outlet, driving means including an oscillating lever anda parallel throw link both pivotally connected to said implement formoving the implement toward and away from the outlet, and an adjustablypositioned and common fulcrum member to which said lever and said linkare both pivotally connected.

35. In apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten glass having asubmerged discharge outlet, of a rigid implement working in the glass tocontrol the discharge of glass from the outlet, driving means includingan oscillatinlever and a parallel throw link both pivotalIy connected tosaid implement for moving the im plement toward and away. from theoutlet, acommon fulcrum member to which said lever and said link areboth pivbtally conpivotally connected and means for adjusting theposition of said fulcrum member.

36.'In apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten glass havingasubmerged discharge outlet, of'a'rigid implement working in the glass tocontrol the discharge of glass from the outlet, driving means includingan oscillating lever and a parallel throw link both pivotally connectedto said implement for moving the implement toward and away from theoutlet,

.a common fulcrum member to which said lever and said link are bothpivotally connected, and means for adjusting the fulcrum point of saidlink relative to said member.

37. In apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten glass having asubmerged discharge outlet, of a rigid implement working in the glass tocontrol the discharge of glass from the outlet, driving means includingan oscillating lever and a parallel throw link both pivotally connectedto said implement for moving the implement toward and away from theoutlet, a common fulcrum member to which said lever and said link areboth pivotally connected, means for adjusting the position of saidfulcrum member, and means for adjusting the fulcrum point of said linkrelative to said fulcrum member.

.38. In apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten 1 0 glass havinga submerged discharge outlet, of a rigid implement working in .the glassto control the discharge of glass from the outlet, driving meansincluding an oscillating lever and a parallel throw link both pivotallyconnected to said implement for moving the implement toward and awayvfrom the outlet, and means for counterbalancingthe weight of saidimplement, lever and link.

39. In apparatus for producing a'succession of mold charges of moltenglass, the combination with a receptacle for the molten glass having asubmerged discharge outlet, the molten glass being supplied to said receptacle at one side of said outlet, an imple ment working in the glassin the receptacle to control the discharge of glass from the outlet, andmeans for moving said implement toward and away from the outlet, theimmersed end of said implement being ecceno trio of the. axis of saidoutlet toward the hot glass side of the outlet.

40. In apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten glass having asubmerged discharge outlet, the molten glass being supplied to saidreceptacle at one side of said outlet, an implement working in the glassin the receptacle to control the discharge of glass from I combinationof a receptacle for the molten glass having a submerged dischargeoutlet, the glass being supplied to the receptacle in such manner thatthe glass'at one side of the outlet is the hottest, of a rigid implementworking in the glass in the receptacle in relation to the outlet tocontrol the flow of glass from the outlet, the axis of the path ofmovement of said implement being eccentric to the axis of the outlet andadjacent to the hottest side of the outlet to restrict the How of glasstherefrom.

42. In apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten glass having asubmerged discharge outlet, a rigid implement adapted to work in "theglass in relation to the outlet to control the discharge of glass fromthe outlet, a supporting member for said implement, means for operatingsaid supporting member to move said implement toward and away from theoutlet, of an implement-holding chuck carried by said supporting memberand comrising a plurality of swingingly mounted depending graspingmembers arranged to grasp the implement between them and means arrangedto engage the upper-ends of said grasping members to wedge the latterinto engagement with the implement.

43. In apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten glass having asubmerged discharge outlet, a rigidimplement adapted to work in theglass in relation to the outlet to control the discharge of glass fromthe outlet, a supporting member for said implement, means for operatingsaid supporting member to move said implement toward and away from theoutlet, of an implement-holding chuck carried by said supporting memberand comprising a plurality of swingingly mounted depending graspingmembers arranged to grasp the implement between them and means movablymounted relative to the supporting member and arranged to engage theupper ends of said grasping members to'wedge the latter into engagementwith the implement.

44. In apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten glass having asubmerged discharge outlet,,a rigid implement adapted to work in theglass in relation to the outlet to control the discharge of glass fromthe outlet, a supporting membet for said implement, means for operatingsaid supporting member to move said implement toward and away from theoutlet, of an implement-holding chuck carried by said supporting memberand comprising a plurality of swingingly mounted depending graspingmembers arranged to grasp the im plement between them and meansvertically slidable and arranged to engagethe upper ends of saidgrasping membersto wedge the latter into engagement with the implement.

45. In apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten glass having asubmerged discharge outlet, a rigid implement adapted to work in theglass in relation to the outlet to control the discharge of glass fromthe outlet, a supporting member for said implement, means for operatingsaid supporting member to move said implement toward and away from theoutlet, of an implementholding chuck carried by said supporting memberand comprising a plurality of movably mounted grasping members arrangedto grasp the implement between them, and a member movably mounted on thechuck and arranged to force said members out of engagement with theimplement.

46. In apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten glass having asubmerged discharge outlet, a rigid implement adapted to work in theglass in relation to the outlet to control the discharge of glass fromthe outlet, a supporting member for said implement, means for operatingsaid supporting member to move said implement toward and away from theoutlet, of an implement-holding chuck carried by said supporting memberand comprising a plurality of movably mounted grasping members arrangedto grasp the implement between them, and means tor-wedging said membersout of engagement Wll/h the implement.

47. In apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten glass having asubmerged discharge outlet, a rigid implement adapted to work in theglass in relation to the outlet to control the discharge of glass fromthe outlet, a supporting member for said implement, means for operatingsaid supporting member to more said implement-toward and away from theoutlet, of an implement-holding chuck carried by said supporting memberand comprising a plurality of swingingly mounted grasping membersarranged to grasp the implement between them and means carried by thechuck and arranged to engage said members for causing said graspingmembers to diverge to release the implement.

48.'In apparatus for producing a succesmembers being arranged toseparate by gravity when released, and means for maintaining saidgrasping members in engagement with the implement.

4:9. In apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten glass having asubmerged discharge outlet, a rigid implement arranged to work in theglass in relation to the outlet to control the discharge of glass fromthe outlet, of an instrumentsupporting stem, means for reciprocatingsaid stem to cause the implement to move toward and away from theoutlet, and an implementholding chuck carried by said stem andcomprising a plurality of grasping members swinginglymounted on saidstem and arranged to converge to grasp the implement between them and todiverge to release the implement, means for maintaining the graspingmembers in engagement with the implement, and wedge means fordisengaging the grasping members from the implement.

50. In apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten glass having asubmerged discharge outlet, a rigid implement arranged to work in theglass in relation to the outlet to control the discharge of glass fromthe outlet, of an instrumentsupporting stem, means for reciprocatingsaid stem to cause the implement to move toward and away from theoutlet, and an implementholding chuck carried by said stem andcomprising a plurality of grasping members swingingly mounted on saidstem and arranged to converge to grasp the implement between them and todiverge to release the implement, and a member movable in relation tothe stem and arranged to cause by its various movements the graspingmembers to converge and diverge.

51'. In apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten glass having asubmerged discharge outlet, a rigid implement arranged to work in theglass in relation to the outlet to control the discharge of glass fromthe outlet, of an instrumentsupporting stem, means for reciprocatingsaid l5 stem to cause'the implement to move toward and away from theoutlet, and an implementholding chuck carried by said stem andcomprising a plurality of grasping members swingmglymounted on said stemand arranged-to converge to grasp the implement between them and todiverge to release the implement, and a member provided with oppositelydisposed cam surfaces adapted to engage the grasping members and movablein relation to the stem whereby said last mentioned member may be movedinto one position to cause the grasping members to converge and intoanother position to cause the grasping members to diverge. p

52. In apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten glass havin asubmerged discharge outlet, a rigid imp ement arranged to work in theglass in relation to the outlet to control the discharge of glass fromthe outlet, of an instrument-supporting stem, means for reciproeatingsaid stem to cause the implement to move toward and away from theoutlet, and an implement-holding chuck carried by said stem andcomprising a plurality of grasping members swingingly mounted on saidstem and arranged to converge to grasp the implement between them and todiverge to release the implement, and a member provided wlth oppositelydisposed cam surfaces adapted to engage the grasping members androtatably mounted in relation to the stem whereby said last mentionedmember may be moved into one position to cause the grasping members toconverge and into another position to cause the grasping members todiverge.

53. In apparatus for producing a succession of mold charges of moltenglass, the combination witha receptacle for the molten glass having asubmerged discharge outlet, a rigid implement arranged to work in theglass in relation to the outlet to control the discharge of glass fromthe outlet, of an instrument-supporting stem, means for reciprocatingsaid stem to cause the implement to move toward and away from theoutlet, and an implement-holding chuck carried by said stem andcomprising a plurality of grasping members swingingly mounted on i saidstem and arranged to converge to grasp the implement between them and todiverge to release the implement, and a member provided with oppositelydisposed cam surfaces adapted to engage the grasping members androtatably and longitudinally slidably mounted in relation to the stemwhereby said last mentioned member may be moved into one position tocause the grasping members to converge and into another position tocause the grasping members to diverge.

54. In apparatus for producing a succession of mold charges of moltenglass, the combination with a receptacle for the molten glass having asubmerged discharge outlet, 9.

rigid "implement arranged to work in the glass in relation to the outletto control the discharge of glass from the outlet, of aninstrument-supporting stem, means for reciprocating said stem to causethe implement to move toward and away from the outlet, and animplement-holding chuck carried by said i stem and comprising aplurality of grasping I the container toward and from the outlet toregulate discharge of glass through the outlet and to aid in imparting apredetermined artificial shape to successive masses of discharged glasssuspended below the outlet, and unitary means operable during thereciprocation of the implement for simultaneously adjusting the lowerand upper limits of the strokes of the implement toward and away fromeach other to vary the shape imparting and flow regulating effects ofthe implement strokes.

56. In glass feeding apparatus, a containor for molten glass having asubmerged outlet, an implement reciprocable in the glass in thecontainer toward and from the outlet, an oscillatory lever connectedwith said implement for reciprocating the latter, a reciprocablerod-like member connected with said lever, and a pair of stop membersmounted on said rod-like member so as to be adjusted simultaneouslytoward or away from each other on relative angular turning movements ofsaid rod-like member and said stop memhere about the axis of therod-like member, said stop members being adapted to cooperate withstationary abutment means to limit the upward and downward strokes ofthe implement.

57. In glass feeding apparatus, a container for molten glass having asubmerged outlet, an implement reciprocable in the glass in thecontainer toward and from the outlet, an os cillatory lever connectedwith said implement for reciprocating the latter, a reciprocablerod-like member connected with said lever, a pair of stop membersmounted on said rod-like member so as to be adjusted simultaneouslytoward or away from each other on relative angular turning movements ofsaid rod-like member and said stop members, said stop members beingadapted to cooperate with stationary abutment means to limit the upwardand downward strokes of the implement, and means for causing saidrelative angular turning movement of said rodlike member and said stopmembers.

58. In glass feeding apparatus, a container for molten glass having asubmerged outlet, an implement reciprocable in the glass toward and fromthe outlet, an oscillatory lever for reciprocating said implement, arotatable and reciprocable rod-like member connected with said lever,said rod-like memher having adjacent oppositely screw threaded portions,and a pair of stop members carried by the rod-like member andrespectively in threaded engagement with said oppositely threadedportions of the rod-like member for, limiting the strokes of theimplement, said stop members being held against rotation about the axisof said rod-like member, whereby turning of the rod-like member aboutits axis will cause movement of said stop members toward or away fromeach other.

59. In apparatus for producing a succession of molten glass, thecombination with a receptacle for the molten glass having a submergeddischarge outlet, of a rigid implement working in the glass in saidreceptacle in relation to the outlet to control the discharge of glassfrom the outlet, means to move the implement toward and away from theoutlet, and means to rotate said implement comprising a rotator having abore through which the stem of said implement extends, said implementstem bein slidable in said bore but rotating with said rotator, and areciprocating member arranged to drive said rotator.

60. In apparatus for producing a succession of molten glass, thecombination with a receptacle for the molten glass having a sub mergeddischarge outlet, of a rigid implement working in the glass in saidreceptacle in relation to the outlet to control the discharge of glassfrom the outlet, means to move the implement toward and away from theoutlet, and means to rotate said implement comprising a rotator having abore through which the stem of said implement extends, said implementstem being slidable in said bore but rotating with said rotator, and areciprocating -member arranged to drive said rotator in a constantdirection.

61. In apparatus for producing a succession of molten glass, thecombination with a receptacle for the molten glass having a submergeddischarge outlet, of a rigid implement working in the glass in saidreceptacle in relation to the outlet to control the discharge of glassfrom the outlet, means to move the implement toward and away from theoutlet, and means to rotate said implement comprising a rotator having abore through which the stem of said implement extends, said implementstem being slidable in said bore but rotating with said rotator, a

reciprocating member having opposed rack surfaces, and gear connectlonsbetween said rack surfaces and said p1n10n whereby the movements of saidrack impart rotary movements to said pinion.

62. In apparatus for producing a succession of molten glass, thecombination with a receptacle for the molten glass having a submergeddischarge outlet, of a rigid implement working in the glass in saidreceptacle in relation to the outlet to control the discharge of glassfrom the outlet, means to move the implement toward and away from theoutlet, and means to rotate said implement comprising a rotator having abore through which the stem of said implement extends, said implementstem being slidable in said bore but rotating with said rotator, areciprocatingmember having opposed rack surfaces, and gear connectionsbetween said rack surfaces and said pinion whereby the movements of saidrack impart rotary movements to said pinion in a constant direction.

63. In apparatus for producing a succession of molten glass, thecombination with a receptacle for the molten glass having a submergeddischarge outlet, of a rigid implement working in the glass in saidreceptacle in relation to the outlet to control the dis charge of glassfrom the outlet, means to move the implement toward and away from theoutlet, and means to rotate said implement comprising a rotator having abore through which the stem of said implement extends, said implementstem being slidable in said bore but rotating with said rotator, areciprocating member having a pair of opposed rack surfaces, and pinionsinterposed between each of said rack surfaces and said first mentionedpinion and arranged to alternately impart rotary movement to the latter.

64. In apparatus for producing a succession of molten glass, thecombination with a receptacle for the molten glass having a submergeddischarge outlet, of a rigid implement Working in the glass in saidreceptacle in relation to the outlet to control the discharge of glassfrom the outlet, means to move the implement toward and away from theoutlet, and means to rotate said implement comprising a rotator having abore through which the stem of said implement extends, said implementstem being slidable in said bore but rotating with said rotator, areciprocating member having a pair of opposed rack surfaces, and pinionsinterposed between eachof said rack surfaces and said first mentionedpinion and arranged to alternately impart rotary movement to the latterin a constant direction.

Signed at Swissvale, Pa., this 11th day of March, 1926. 4 v WILLIAM J.MILLER.

